Opening the Future of Private 5G through Collaboration
Fujitsu’s Private 5G Initiatives
Takashi Kanda

Executive Director
5G Vertical Service Office, Fujitsu

1. Introduction

Private 5G in Japan is currently in an introductory period,
but with the institutionalization of private 5G in December
2020 together with increasing recognition and an increasing
number of system launches, it looks to be entering a growth
period. To this end and to broaden the type of use cases in which
private 5G can be effective, many demonstrations using 5G havecome to be performed such as “Development Demonstrations
for Realizing Local 5G Services to Solve Local Issues”[1]. In
the case of 5G, there are an extremely large variety of use casesand devices targeted for connection, and it is expected that
5G systems and services, in addition to being evolved forms ofcurrent systems and services, will break new ground and drive anincrease in totally new communication scenarios. In particular, theconstruction of a system using private 5G will require a proposal
for a comprehensive solution[2]. This will involve, for example,
the construction and rollout of a high-reliability network with alevel of performance optimal for the target use case and business
scheme as well as the use of an advanced data center and cloud forusing 5G functions to the fullest at the system level.
In this article, section 2 describes the institutionalization ofprivate 5G in December 2020, section 3 explains the need forcomprehensive solutions in the implementation of private 5G, andsection 4 and later sections introduce a “partnership program” inwhich Fujitsu and partner companies integrate their respective
know-how and products/services into systems with the aim ofsolving corporate and social issues.

2. Institutionalization Revision of Private 5G

Private 5G was first institutionalized with a partial frequency
band (28.2 – 28.3 GHz) in December 2019[3]. Then, to support
a variety of private 5G needs, an institutional revision wasmade including an expansion of private 5G frequency bands inDecember 2020[4].
Compared with the previously institutionalized millimeterwaveband, the added Sub6 band features a wide communication
range robust to physical obstacles. The Sub6 enables early systemconstruction using either a 4G-based non-standalone (NSA)system with Sub6 serving as an anchor for control signals or astandalone (SA) system using only 5G signals. This approach
minimizes the number of devices needed to build a system andsimplifies system construction, operation, and maintenance.
Main institutional revisions to private 5G including this Sub6
band addition are summarized below.
• Addition of Sub6 band (4.6 – 4.9 GHz)

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• Expansion of millimeter-wave bandwidth (28.3 – 29.1 GHz)
• Use of another’s ground (added to use of one’s own grounds
under certain conditions)• Addition of anchor band (1.9 GHz)
• Simplification of modification procedures• Addition of asynchronous/semi-synchronous operation
This new institutionalization of private 5G went into effecton December 18, 2020 and the acceptance of license applications
for these expanded private 5G frequency bands commenced
on the same day. Applicants included manufacturers, regional
communication operators, universities, and regional publicbodies[5]. Fujitsu also submitted license applications for its inhouse developed Sub6 SA system and for millimeter-wave
frequency-band expansion at multiple bases including Fujitsu
manufacturing plants.
At the Fifth Generation Mobile Communication Promotion
Forum (5GMF) [6] , the Regional Utilization Promotion
Committee where I serve as deputy chairman has created andreleased a manual that details the procedures involved in applying
for private 5G licenses with a focus on participating companies[7].
The latest version of this manual reflects the institutionalization ofprivate 5G in December 2020.

3. Need for Comprehensive Solutions

Fujitsu received Japan’s first commercial private 5G licensefrom the Kanto Bureau of Telecommunications, Ministry ofInternal Affairs and Communications (MIC) in March 2020[8]and begin operating a private 5G network at its Shin-Kawasaki
Technology Square office (location: Kawasaki City, KanagawaPrefecture)[9]. With this network, Fujitsu will implement crimeprevention measures in the building by using private 5G totransmit high-definition video collected by multi-point cameras
and analyzing various types of human behavior by AI thereby
achieving a security system that can detect suspicious behavior
early. System configuration is shown in Figure 1.
A surveillance system of this kind requires the constructionof a system that can perform detection through video and datacollected from on-site high-definition cameras and a variety ofsensors, accurately determine on-site conditions by analyzing thatvideo and data, and immediately feed back analysis results to thatsite. It is important here that the 5G features of high speed andlarge capacity, low latency, and massive connectivity be used tothe maximum as needed in a flexible manner. However, a highperformance surveillance system cannot be achieved by providing
5G support for only base stations and terminals. In other words,■ Figure 1: Configuration of security system using private 5G■ Figure 2: Fujitsu Collaboration Lab

a comprehensive combination of technologies is essential, such as
digitalizing real-world information at “sensors,” converting that
information to value by “AI,” and connecting that value by “5G”
while ensuring “security.” Linking technologies in this way has thepotential of creating new work styles never before imagined andrevolutionizing not only the means of doing business but businessitself.

4. Private 5G Partnership Program

Putting technology to practical use while co-creating withdiverse partners and fostering innovation is an important keyto solving a variety of social issues. To this end, Fujitsu has

established a “Private 5G Partnership Program”[10] to integrate
solutions based on the knowledge and products/services of Fujitsu
and its partner companies and “Fujitsu Collaboration Lab”[11](Figure 2) (location: Kawasaki City, Kanagawa Prefecture) as a
facility for verifying those solutions.
In this way, Fujitsu is providing private 5G network
technology and a wide range of industry know-how at theprogram’s site to create and realize private 5G use cases together
with partner companies possessing advanced technologies.
Support is also provided for implementing use cases at customers’sites. In addition to testing connections to a private 5G network,
participants in the Private 5G Partnership Program can create

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9solutions that include devices and applications of partnercompanies and propose solutions to specific problems. ThePrivate 5G Partnership Program consists of the following two
subprograms:(1) Connection verification program(2) Solution co-creation program
4.1 Connection verification programThis program verifies interoperability between Fujitsu’s
network and products to be connected to a private 5G network.
The testing consists of connection verification and performance
tests, and determining the actual items to be tested according to
the types and specifications of target devices (which may include avariety of sensors, cameras, unmanned vehicles, and IoT gateways)
is included. Fujitsu is testing private 5G terminals in collaboration
with Japanese and overseas partner companies with the support ofcommunications chip manufacturers and is working on expanding
the lineup of private 5G terminals that currently come in only afew types.
4.2 Solution co-creation programThis program drives business innovation and co-creates
solutions to problems faced by companies and society using private
5G by integrating Fujitsu’s network technologies and wide range
of industry know-how with the products, services, and advanced
technologies of partner companies. It features the following threecomponents.
(1) Collaborative study of co-created solutions
Performs collaborative studies of solutions based on thedevices, private 5G, applications, knowledge, etc. brought by eachcompany participating in the Private 5G Partnership Program(2) Tests and demonstrations of co-created solutions
Performs technical tests of collaboratively studied solutions
within a private 5G network environment(3) Collaborative demonstrations and proposals
Performs collaborative demonstrations and proposals withrespect to studied solutions for companies and local governmentsthat are contemplating the introduction of private 5G.

5. Fujitsu Collaboration Lab

This section introduces Fujitsu Collaboration Lab as afacility for co-creating solutions using private 5G and verifying
connection with a variety of devices.
The private 5G network presently being used at this facility is
configured with a NSA system consisting of millimeter-wave 5G
and 2.5-GHz-band 4G and a Sub6 SA system as well. In addition
to private 5G network equipment, Fujitsu Collaboration Lab
provides a variety of measuring instruments and monitors as wellas the equipment and materials needed for reproducing a pseudoenvironment for radio-wave propagation. These provisions enable
the construction of a test environment corresponding to the target
usage scenario. The facility is also equipped with 4K cameras
and other devices that enable testing using the “transmission ofhigh-definition video” based on the private 5G feature of stable,
large-capacity communications (Figure 3). There is also a space for
conducting tests with partner companies and a working area fordevelopment work and meetings, all of which facilitate connection
verification and solution co-creation.

6. Example of Solution Co-creation

This section presents an actual example of solution cocreation. In this example, Fujitsu collaborated with Microsoft
Japan Ltd. to verify the effectiveness of a system that uses private
5G to visualize data within a manufacturing site in real timewith a view to the digital transformation (DX) of manufacturing
sites[12].
Using Fujitsu’s private 5G network at the Fujitsu Collaboration
Lab, this system analyzes high-definition video of people,unmanned vehicles, etc. moving within the facility and operating
data obtained from cameras, mobile terminals, servers, andother devices on an edge-computing platform. It also performs
unified visualization of human behavior, the control of unmannedvehicles, and equipment operating conditions on industry
applications. Integrating private 5G with edge computing and a
cloud system in this way achieves a system optimized for network
and application processing loads.

■ Figure 3: Connection verification environment

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6.1 Purpose of test
The purpose of this test was to verify the usefulness of a
private 5G use case envisioned for manufacturing sites and theeffectiveness of a system that integrates edge computing using
private 5G and a cloud system.
• Verify the effectiveness of integrating a private 5G networkwith an edge-computing platform and cloud system• Achieve video analysis and real-time processing throughedge computing• A chieve uniform management of site equipment andinformation on the cloud
6.2 System overview
System overview is shown in Figure 4. In this test
configuration, the system uses edge computing to perform AI

analysis of large-capacity video data with the aim of achieving“real-time sensing by high-definition video analysis” using private
5G. It also implements a cloud-linking function for visualizing theanalyzed real-time data, performing a statistical analysis on thatdata, and linking analyzed data between sites. The system includes
a distribution function for edge servers to support version upgradesof AI functions.
(1) Transmit high-definition video capturing the movements ofpeople and unmanned vehicles and operating data obtained
from mobile terminals, servers, and other devices to edge
computing via private 5G(2) Perform video analysis by AI of the movements of people andunmanned vehicles on the edge-computing platform and use theresults of analysis to perform remote control (Figures 5 and 6)(3) Transfer analyzed data to the cloud system■ Figure 4: Test configuration of system integrating private 5G, edge computing, and cloud■ Figure 5: Joint testing of high-definition video analysis using edge computing

Video analysis (edge computing)Testing work

■ Figure 6: J oint testing of unmanned vehicles using edge computing

Video analysis, position detection(edge computing)

Prototype of unmanned vehicle
equipped with a camera and5G communication module

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■ Figure 7: Dashboard display screen (cloud)(4) Coordinate business applications on the cloud system andvisualize the accumulated analyzed data (density of people,
positions of unmanned vehicles, paths of movement, operating
conditions of high-definition cameras, mobile terminals,
servers, and other devices within the site) on a dashboard(Figure 7).
(5) Manage the versions of edge applications such as AI-based
video analysis on the cloud system and distribute applications
to edge computing.
6.3 Test results
We achieved a system optimized for network and application
processing loads by integrating private 5G, edge computing,and a cloud system. This confirms that the system is effective
for operating unmanned vehicles and performing remotemonitoring/control using high-definition video as envisioned for
manufacturing sites.
At Fujitsu’s Oyama plant (location: Oyama City, TochigiPrefecture), a manufacturing base for Fujitsu network equipment,
Fujitsu is working with Fujitsu Telecom Networks Limited,which is involved in the manufacturing of this equipment, totest the utility of products and systems tested in the Private 5G
Partnership Program. Here, the plan is to test support for work
procedures and the running of unmanned vehicles using highdefinition video and AI.

References[1] https://www.soumu.go.jp/main_sosiki/joho_tsusin/eng/pressrelease/2020/10/16_03.html[2] https://blog.global.fujitsu.com/fgb/technology-trends/?tags=5G[3]	https://www.soumu.go.jp/main_sosiki/joho_tsusin/eng/pressrelease/2019/12/17_6.html[4] https://www.soumu.go.jp/main_sosiki/joho_tsusin/eng/pressrelease/2020/12/11_03.html[5] https://www.soumu.go.jp/soutsu/kanto/press/2020/1218r1.html[6] https://5gmf.jp/en/[7] https://5gmf.jp/case/4484/[8] https://www.soumu.go.jp/soutsu/kanto/press/2020/0327r1.html[9] https://www.fujitsu.com/global/about/resources/news/press-releases/2020/0327-01.html[10] https://www.fujitsu.com/jp/services/local5g/partnership/[11] https://www.fujitsu.com/global/about/resources/news/press-releases/2020/1008-01.html[12] https://www.fujitsu.com/global/about/resources/news/press-releases/2020/1008-02.html

Cover Art

7．Conclusion
This article explained the need for comprehensive solutions
toward the use of private 5G and described a partnership program
now in progress.
Looking to the future, we can expect private 5G to undergo
a wide rollout to solve a variety of issues and to be widely usedin projects to provide support for solving both corporate andregional issues. Through its partnership program, Fujitsu seeks
to contribute to the solving of diverse social issues by engaging in
co-creation activities with a wide range of partners and combining
Fujitsu and partner technologies in an integrated manner.

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Kyotomeishonouchi Gionsha Secchiyuu(Gion Shrine in Snow)
Utagawa Hiroshige (1797~1858)
Collection of the Art Research Center (ARC)
Ritsumeikan University
Object number: arcBK06-0013_012